Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"tran lap dat slippers" » "tan lap dat slippers", "toan lap dat slippers", "tran lam dat slippers", "tran luat dat slippers", "tran lap dat slippery", "tran lap dat grippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("tran lap dat slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tran lap dat slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tran lap dat slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tran lap dat slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.